Scaladoc in maven workaround
Merge branch 'master', remote branch 'remotes/master/master'
added nodesForPartitionedIds in partitionedLoadBalancer to support set cover intelligence in the Default PartitionedLoadBalancer
improved set cover algorithm; used partitionId to guide finding endpoints, greedy set cover over all nodes serving the selected partitionId
adding documentations for set cover algorithm
add tests for set cover implementation in DefaultPartitionedLoadBalancerFactory
Merge pull request #11 from ruiwang-linkedin/master

Used greedy set cover algorithm to reduce scattering batch of ids
Version -> 0.6.30